Recent content by physicals

It just makes intuitive sense for f(y) to be in the other direction (or negative). Like @A.T has pointed out, f(y) would be positive or negative depending on the position of W. Since on the image W is to the right of the pivot formed due to the diagonal rod, f(y) must be negative.

Thank you all for clarifying my doubts! @A.T., especially, has given explanations with the most concise, understandable language without too much jargon (suits best for a high schooler). Now that we have come to the end of the discussion, Im not sure how you end a tread, do you just stop...

I still think F(y) must be in the other direction

My doubt has finally been clarified, but for the sake of physics debate and to ensure i have no knowledge gaps, i am not fully convinced by the direction of the forces on @kuruman diagram explanation. Though i fully understand the logic explained by the diagram, i think force F(y) should be in...

The pieces finally fit now! I understand that D is the true physical effect of the diagonal rod's force, we only choose to resolve the vector to make calculations easier. So my assumption that the vertical and horizontal components of D are the only "physical" force effects is wrong. However...

Its starting to make sense now. But i still don't understand why we don't consider the physical effects of force D on the horizontal rod. Maybe I should just accept that the mark scheme provides an alternate (more simpler) method for solving the question, and that both methods are equally...

Thank you all for your replies. I must apologize for the mild ambiguity in my query. I do know that force F results in a moment about pivot P, but i meant that the clockwise moment due to F is exactly balanced by the anticlockwise moment due to the horizontal component of the thrust by the...

Hey there, Before i introduce you to the question, i would like to clarify that this is not a home work question so i encourage all support that can be given without holding back, marking this as "cheating" (this has sadly happened to me in the past). This question was part of the recent...

so the magnetic field pushes the particle instead of pull? then how is there circular motion?

With learning must come humility and acceptance as well, i am sorry to have lied about the examiner report, after some proper thinking i have concluded that the right answer is B, using my earlier reasoning for the centripetal force and magnetic force, the magnetic field indeed goes into the...

Thank you for everyone's time and support, i wish to close this thread, since this question is no longer needed of my interest anymore

here's the deal, if you can prove the answer is B using high school physics then I will send the examiners report

I love how we members on physics forum love to debate about completely useless things even though its wrong 😂😁😂

Hey thanks for your opposition but upon checking examiner reports I have verified that the answer is truly A. It really is hard to try prove something that is the opposite of correct!

i think this might be some what of a good reasoning though it depends on perspective. The direction of the magnetic field around the positive particle is indeed into the page but that doesn't automatically mean the direction of magnetic field causing the motion is into the page. To verify that...